diff --git a/src/wasm2obj.rs b/src/wasm2obj.rs
index 8b7b6de97f..4edb94982e 100644
--- a/src/wasm2obj.rs
+++ b/src/wasm2obj.rs
@@ -86,10 +86,11 @@ fn read_wasm_file(path: PathBuf) -> Result<Vec<u8>, io::Error> {
 }
 
 fn main() {
+    let version = env!("CARGO_PKG_VERSION");
     let args: Args = Docopt::new(USAGE)
         .and_then(|d| {
             d.help(true)
-                .version(Some(String::from("0.0.0")))
+                .version(Some(String::from(version)))
                 .deserialize()
         })
         .unwrap_or_else(|e| e.exit());
diff --git a/src/wasmtime.rs b/src/wasmtime.rs
index e2a7db605a..d949cba1ad 100644
--- a/src/wasmtime.rs
+++ b/src/wasmtime.rs
@@ -191,10 +191,11 @@ fn compute_environ(flag_env: &[String]) -> Vec<(String, String)> {
 }
 
 fn main() {
+    let version = env!("CARGO_PKG_VERSION");
     let args: Args = Docopt::new(USAGE)
         .and_then(|d| {
             d.help(true)
-                .version(Some(String::from("0.0.0")))
+                .version(Some(String::from(version)))
                 .deserialize()
         })
         .unwrap_or_else(|e| e.exit());
diff --git a/src/wast.rs b/src/wast.rs
index 86da3215f3..7e87bc189f 100644
--- a/src/wast.rs
+++ b/src/wast.rs
@@ -64,10 +64,11 @@ struct Args {
 }
 
 fn main() {
+    let version = env!("CARGO_PKG_VERSION");
     let args: Args = Docopt::new(USAGE)
         .and_then(|d| {
             d.help(true)
-                .version(Some(String::from("0.0.0")))
+                .version(Some(String::from(version)))
                 .deserialize()
         })
         .unwrap_or_else(|e| e.exit());